source: trunk/src/binutils/opcodes/h8300-dis.c@ 10

Last change on this file since 10 was 10, checked in by bird, 23 years ago

Initial revision

  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 8.9 KB
Line 
1/* Disassemble h8300 instructions.
2 Copyright 1993, 1994, 1996, 1998, 2000 Free Software Foundation, Inc.
3
4This program is free software; you can redistribute it and/or modify
5it under the terms of the GNU General Public License as published by
6the Free Software Foundation; either version 2 of the License, or
7(at your option) any later version.
8
9This program is distributed in the hope that it will be useful,
10but WITHOUT ANY WARRANTY; without even the implied warranty of
11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12GNU General Public License for more details.
13
14You should have received a copy of the GNU General Public License
15along with this program; if not, write to the Free Software
16Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
17
18#define DEFINE_TABLE
19
20#include "sysdep.h"
21#define h8_opcodes h8ops
22#include "opcode/h8300.h"
23#include "dis-asm.h"
24#include "opintl.h"
25
26/* Run through the opcodes and sort them into order to make them easy
27 to disassemble. */
28static void
29bfd_h8_disassemble_init ()
30{
31 unsigned int i;
32 struct h8_opcode *p;
33
34 for (p = h8_opcodes; p->name; p++)
35 {
36 int n1 = 0;
37 int n2 = 0;
38
39 if ((int) p->data.nib[0] < 16)
40 n1 = (int) p->data.nib[0];
41 else
42 n1 = 0;
43
44 if ((int) p->data.nib[1] < 16)
45 n2 = (int) p->data.nib[1];
46 else
47 n2 = 0;
48
49 /* Just make sure there are an even number of nibbles in it, and
50 that the count is the same as the length. */
51 for (i = 0; p->data.nib[i] != E; i++)
52 ;
53
54 if (i & 1)
55 abort ();
56
57 p->length = i / 2;
58 }
59}
60
61unsigned int
62bfd_h8_disassemble (addr, info, mode)
63 bfd_vma addr;
64 disassemble_info *info;
65 int mode;
66{
67 /* Find the first entry in the table for this opcode. */
68 static CONST char *regnames[] =
69 {
70 "r0h", "r1h", "r2h", "r3h", "r4h", "r5h", "r6h", "r7h",
71 "r0l", "r1l", "r2l", "r3l", "r4l", "r5l", "r6l", "r7l"
72 };
73 static CONST char *wregnames[] =
74 {
75 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
76 "e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7"
77 };
78 static CONST char *lregnames[] =
79 {
80 "er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7",
81 "er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7"
82 };
83 int rs = 0;